Which of thefollowing correctly defines lattice energy? AIt is the energy required to convert a mole of ionic solid into its constituent ions in the gas phase.BIt is the energy given off when gaseous ions combine to form one mole of an ionic solid.CIt is the energy required to produce one mole of an ionic compound from its constituent elements in their standard states.DIt is the sum of ionisation energies of the components in an ionic solid. Kenapa A bukan B
1. Which of thefollowing correctly defines lattice energy? AIt is the energy required to convert a mole of ionic solid into its constituent ions in the gas phase.BIt is the energy given off when gaseous ions combine to form one mole of an ionic solid.CIt is the energy required to produce one mole of an ionic compound from its constituent elements in their standard states.DIt is the sum of ionisation energies of the components in an ionic solid. Kenapa A bukan B
Jawaban:
What affects lattice energy?
This model emphasizes two main factors that contribute to the lattice energy of an ionic solid: the charge on the ions, and the radius, or size, of the ions.
Penjelasan:
The effect of those factors is: as the charge of the ions increases, the lattice energy increases.
2. Which one of the following molten electrolytes requires only one mole of electrons to produce one mole of metal atoms during electrolysis? A.calcium glories B. Iron (111)glories C. Magnesium bromide D.potassium bromide
jawabannya adalah c magnesium bromide
3. 3.0 g of magnesium was added to 12.0g of ethanoic acid. Mg + 2CH 3 COOH → (CH3COO)2Mg + H 2 The mass of one mole of Mg is 24g. The mass of one mole of CH3COOH is 60g. Which one, magnesium or ethanoic acid, is in excess? You must show you nasoning
mass of Mg = 3 g
Atomic relative Mg (Ar) = 24 g/mole
mass of CH3COOH = 12 g
Molecular relative of CH3COOH (Mr) = 60 g/mole
Reaction occurs:
Mg + 2CH3COOH → (CH3COO)2Mg + H2 (balance)
first, calculate mole for each reactant[tex]n \: = \frac{mass}{Ar/Mr} [/tex]
[tex]n \: Mg= \frac{3 \: g}{24 \: g/mole} = 0.125 \: mole [/tex]
[tex]n \: CH _{3}COOH = \frac{12 \: g}{60 \: g/mole} = 0.2 \: mole [/tex]
identifying the limiting reactant from balanced equation, use the mole from calculation before and use coefficient for each reactant from balanced equation[tex]limiting \: reactant = \frac{mole \: reactant}{coefficient \: of \: reactant} [/tex]
[tex]limiting \: Mg = \frac{0.125}{1} = 0.125 \: mole[/tex]
[tex]limiting \: CH_{3}COOH = \frac{0.2}{2} = 0.1 \: mole[/tex]
use CH3COOH as limiting reactant because it has smallest mole quantity, so for 1 coefficient of each compoundcompound is 0,1 mole.
calculate the remaining reactantMg + 2CH3COOH → (CH3COO)2Mg + H2
initial 0.125 0.2 - -
reacted 0.1 0.2 0.1 0.1
excess 0.025 - 0.1 0.1
calculate mass of excess reactant, Mg[tex]mass \: = excess \: mole \: \times Ar = 0.025 \: mole \times 24 \: g/mole = 0.6 \: g[/tex]
4. 1. according to flight unit, thr feeling of boredom2. in order to be happy in this life, 3.in order to change the situation.4.flightunit encourages jameer by saying5. one focus of studying at school is
Jawaban:1. menurut unit penerbangan, perasaan bosan
2. agar bisa bahagia dalam hidup ini,
3. untuk mengubah situasi.
4.flightunit mendorong jameer dengan mengatakan
5. salah satu fokus belajar di sekolah adalah
Penjelasan:
5. Make one paragraph (10 kalimat)tema : how to have a happy life in pandemic covid 19( gunakan conjunction to, so that, in order to / in order not to)bantu jawab
Jawaban:
During this pandemic period we have to regularly keep our body health by doing some activities/exercises, in order to avoid boring time you can play games, watch your favorite movies, and doing some habits you like to do. You can also share your confide to your family member so that you'll feel more clear and free. Don't go anywhere if it is not important in order not to infect each other. Stay at homestay safe!
Penjelasan:
6. write down the differences in the use of conjuctions (To,In order,In order not to,and so that) to express purpose/intention!
Jawaban:
tuliskan perbedaan penggunaan konjungsi (kepada, agar, agar tidak, dan agar) untuk menyatakan maksud/maksud! kami
Penjelasan:
semoga membantu
7. SOLVE THIS ??! Pure propane (C3H8) from El Paso is dehydrogenated catalytically in a continuous process to obtain propylene (C3H6). All of the hydrogen formed is separated from the reactor exit gas with no loss of hydrocarbon. The hydrocarbon mixture is then fractionated to give a product stream containing 88 mole % propylene and 12 mole % propane. The other stream, which is 70 mole % propane and 30 mole % propylene, is recycled. The one-pass conversion in the reactor is 25%, and 1000 kg of fresh propane are fed per hour. Find (a) the kg of product stream per hour, and (b) the kg of recycle stream per hour.
product stream per hour
8. In order to make an appointment with a doctor, which number would one call?
Jawaban:
in order to make an appointment with a doctor which number world on call?
(...ARTINYA...)
untuk membuat janji dengan dokter nomor dunia mana yang dihubungi?
9. Fill in the incomplete sentences using conjuntion of : ‘ in order to , in order not to , or So that ‘ ... be healthy , you have to drink lots of water.
Answer :
The right incomplete setence are ' to '
Kosakata yang benar adalah ' Untuk '
Explain :
Hopefully Useful.
10. write a sentence using conjunction of in order to.
Jawaban:
1.we must eat healthy food in order to stay healthy
2.to see if there's something i can do in order to prevent the inevitable of course
3.ehat had the two deidres treaded in order to be combined and let out of hell?
Penjelasan:
sorry if the answer is wrong
11. . In RP A of Dentistry, Airlangga University there were pieces of Arsenate element. A student once tried to react between Oxygen and Arsenate in acidic condition and he observed what substance would be produced. In the end of the experiment, he found molecules of Hydrogen Arsenate (HAsO2) and water. O2 + As ---> HAsO2 + H2O. Determine how many As he used! (A)3 mole (B) 2 mole (C) 8 mole (D)4 mole (E) 6 mole
If want to know how many As is used in the reaction. We have to balance the reaction between O2 and As. Based on the reaction all of the elements lead to oxidation and reduction. We have to find out of each elements whether either oxidation or reduction.
Based on the reaction the O2 leads to reduction. So, we can write an equation reaction of the O2.
O2 → H2O
The As leads to reduction. So, we can write the reaction of As.
As → HAsO2
By using half-reaction method. We can balance redox reaction.
Red : O2 + 4H+ + 4e → 2H2O | x 3
Oks : As + 2H2O → HAsO2 + 3H+ 3e | 4
To make the two equal, multiply the coefficients of all species by integers producing the lowest common multiple between the half-reactions.
4As + 3O2 + 8H2O + 12H+ + 12e- → 4HAsO2 + 6H2O + 12H+ + 12e-
Simplify the equation. The same species on opposite sides of the arrow can be canceled.
So, we can write the balance of whole coefficients reaction
4As + 3O2 + 2H2O → 4HAsO2
Based on the reaction. We know that there are 4 coefficient of As, So, in the reaction between O2 and As. It needs 4 mole of As to completely the reaction.
Wish it hepled
Keep Learning
Footnote :
periodni.com/half-reaction_method/
@XeMore
12. MAKE ONE PARAGRAPH (10 kalimat)tema : HOW TO HAVE A HAPPY LIFE IN PANDEMIC COVID 19( gunakan conjunction to, so that, in order to / in order not to) bantu jawab teman2
Jawaban:
is there any update from the store and get some more information about the house and pandemic legacy of the house
13. in order to get rid of dirt
Jawaban:
use cleaners
Penjelasan:
I hope this helps
14. • One of these computers … a) Is out of order b) Are out of order c) Out of order d) Have been out of order
B. Are Out Of Order. Semoga bermanfaat
15. Make a sentence about healthy use to..,in order to ,in order not to
We must clean our hands before eat in order not to get diarrhea
16. Oke buat slot home arti for in order to make a Dokter B in order that in order to make a mother day in order to heaven to lesson
Jawaban :
Artinya :
Oke buat slot arti rumah untuk di buat menjadi Dokter B agar bisa bikin hari ibu supaya masuk surga pelajaran
Semoga membantu
ini ada soalnya yg lebih jelas kah
17. The complete combustion of copper (I) sulphide is according to the following equation:2Cu2S(s) + 302(g) →2Cu2O(s) +2502(g)If the mass of Cu2S in the mixture is 14.0 g. calculate(a) the number of mole of oxygen gas reacted.
Answer with explanation :
The reaction of complete combustion of Copper (I) Sulphide
2Cu₂S (s) + 3O₂ (g) → 2Cu₂O (s) +2SO₂ (g)
The mass of Cu₂S that we got equals to 14.0 g
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In order to find moles of O₂ gas that reacts with Cu₂S, we must know moles of Cu₂S solid first.
Moles of Cu₂S = [tex]\frac{m}{Mr}[/tex]
Where,
Mass (m) of Cu₂S = 14.0 g
Molecular mass (Mr) of Cu₂S = 159.16 g/mol
So then,
Moles of Cu₂S = [tex]\frac{14.0 \ g}{159.16 \ g/mol}[/tex] = 0.0879 moles
⟡ ⟡ ⟡
And to get the required number of moles, use the ratio of coefficient in the reaction,
2Cu₂S (s) + 3O₂ (g) → 2Cu₂O (s) +2SO₂ (g)
⇒ Cu₂S : O₂ : Cu₂O : SO₂
⇒ 2 : 3 : 2 : 2
Moles of O₂ = [tex]\frac{Coeffiecient \ of \ O_{2}}{Coeffiecient \ of \ Cu_{2}S} \times moles \ of \ Cu_{2}S}[/tex]
Moles of O₂ = [tex]\frac{3}{2} \times 0.0879 moles}[/tex]
Moles of O₂ = [tex]1.5 \times 0.0879 \ moles[/tex]
Moles of O₂ = [tex]0.13185 \ moles[/tex]
Moles of O₂ ≈ [tex]Approximately\ 0.132 \ moles[/tex]
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Thus, the number of moles oxygen gas reacted is 0,132 moles.
⟡ ⟡ ⟡
~I hope this helps you~
18. arti dari to communicate activities in progress at the time of speaking,at one point of time in the past,and at one point of time in the past,and at one point of time in the future,in order#tolong dijawab ya
Aktifitas kelompok sedang di proses pada waktu berbicara,di satu nilai di setengah waktu dan di satu poin waktu di dalam nya.
Maaf kalau salah semoga membantu
19. Who was the one that able to play the Harp in order to pleased Saul?Who was the one that able to play the Harp in order to pleased Saul?
Jawaban:
Siapakah yang bisa memainkan Harpa untuk menyenangkan hati Saul? Siapa yang bisa memainkan Harpa untuk menyenangkan hati Saul?
Penjelasan:
itu translate nya ️
Jawaban:
Siapa orang yang dapat menyenangkan hati Saul dengan bermain harpa? Siapa dia yang dengan bermain harpa dapat menyenangkan hati Saul?
20. 1. what is the porpose of having break-fast? a. in order to do a test well at school b. in order to have energy to do the activity c. in order to save money d. in order to esteem our mother's cooking
Jawaban:
B. In order to have energy to do the activity
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